samples/treectrl/treetest.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        treetest.cpp
   3 // Purpose:     wxTreeCtrl sample
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // For compilers that support precompilation, includes "wx/wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #ifdef __BORLANDC__
  16     #pragma hdrstop
  17 #endif
  18
  19 #ifndef WX_PRECOMP
  20     #include "wx/wx.h"
  21     #include "wx/log.h"
  22 #endif
  23
  24 #include "wx/colordlg.h"
  25 #include "wx/numdlg.h"
  26
  27 #include "wx/image.h"
  28 #include "wx/imaglist.h"
  29 #include "wx/treectrl.h"
  30 #include "wx/math.h"
  31
  32 #ifdef __WIN32__
  33     // this is not supported by native control
  34     #define NO_VARIABLE_HEIGHT
  35 #endif
  36
  37 #include "treetest.h"
  38
  39 #include "icon1.xpm"
  40 #include "icon2.xpm"
  41 #include "icon3.xpm"
  42 #include "icon4.xpm"
  43 #include "icon5.xpm"
  44
  45 #ifndef __WXMSW__
  46     #include "../sample.xpm"
  47 #endif
  48
  49 // verify that the item is ok and insult the user if it is not
  50 #define CHECK_ITEM( item ) if ( !item.IsOk() ) {                                 \
  51                              wxMessageBox(wxT("Please select some item first!"), \
  52                                           wxT("Tree sample error"),              \
  53                                           wxOK | wxICON_EXCLAMATION,             \
  54                                           this);                                 \
  55                              return;                                             \
  56                            }
  57
  58 #define MENU_LINK(name) EVT_MENU(TreeTest_##name, MyFrame::On##name)
  59
  60 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
  61     EVT_IDLE(MyFrame::OnIdle)
  62     EVT_SIZE(MyFrame::OnSize)
  63
  64     MENU_LINK(Quit)
  65     MENU_LINK(About)
  66
  67     MENU_LINK(TogButtons)
  68     MENU_LINK(TogTwist)
  69     MENU_LINK(TogLines)
  70     MENU_LINK(TogEdit)
  71     MENU_LINK(TogHideRoot)
  72     MENU_LINK(TogRootLines)
  73     MENU_LINK(TogBorder)
  74     MENU_LINK(TogFullHighlight)
  75     MENU_LINK(SetFgColour)
  76     MENU_LINK(SetBgColour)
  77     MENU_LINK(ResetStyle)
  78
  79     MENU_LINK(Highlight)
  80     MENU_LINK(Dump)
  81 #ifndef NO_MULTIPLE_SELECTION
  82     MENU_LINK(DumpSelected)
  83     MENU_LINK(Select)
  84     MENU_LINK(Unselect)
  85     MENU_LINK(ToggleSel)
  86 #endif // NO_MULTIPLE_SELECTION
  87     MENU_LINK(Rename)
  88     MENU_LINK(Count)
  89     MENU_LINK(CountRec)
  90     MENU_LINK(Sort)
  91     MENU_LINK(SortRev)
  92     MENU_LINK(SetBold)
  93     MENU_LINK(ClearBold)
  94     MENU_LINK(Delete)
  95     MENU_LINK(DeleteChildren)
  96     MENU_LINK(DeleteAll)
  97     MENU_LINK(Recreate)
  98     MENU_LINK(ToggleImages)
  99     MENU_LINK(ToggleButtons)
 100     MENU_LINK(SetImageSize)
 101     MENU_LINK(CollapseAndReset)
 102     MENU_LINK(EnsureVisible)
 103     MENU_LINK(AddItem)
 104     MENU_LINK(InsertItem)
 105     MENU_LINK(IncIndent)
 106     MENU_LINK(DecIndent)
 107     MENU_LINK(IncSpacing)
 108     MENU_LINK(DecSpacing)
 109     MENU_LINK(ToggleIcon)
 110     MENU_LINK(SelectRoot)
 111 #undef MENU_LINK
 112
 113 END_EVENT_TABLE()
 114
 115 #if USE_GENERIC_TREECTRL
 116 BEGIN_EVENT_TABLE(MyTreeCtrl, wxGenericTreeCtrl)
 117 #else
 118 BEGIN_EVENT_TABLE(MyTreeCtrl, wxTreeCtrl)
 119 #endif
 120     EVT_TREE_BEGIN_DRAG(TreeTest_Ctrl, MyTreeCtrl::OnBeginDrag)
 121     EVT_TREE_BEGIN_RDRAG(TreeTest_Ctrl, MyTreeCtrl::OnBeginRDrag)
 122     EVT_TREE_END_DRAG(TreeTest_Ctrl, MyTreeCtrl::OnEndDrag)
 123     EVT_TREE_BEGIN_LABEL_EDIT(TreeTest_Ctrl, MyTreeCtrl::OnBeginLabelEdit)
 124     EVT_TREE_END_LABEL_EDIT(TreeTest_Ctrl, MyTreeCtrl::OnEndLabelEdit)
 125     EVT_TREE_DELETE_ITEM(TreeTest_Ctrl, MyTreeCtrl::OnDeleteItem)
 126 #if 0       // there are so many of those that logging them causes flicker
 127     EVT_TREE_GET_INFO(TreeTest_Ctrl, MyTreeCtrl::OnGetInfo)
 128 #endif
 129     EVT_TREE_SET_INFO(TreeTest_Ctrl, MyTreeCtrl::OnSetInfo)
 130     EVT_TREE_ITEM_EXPANDED(TreeTest_Ctrl, MyTreeCtrl::OnItemExpanded)
 131     EVT_TREE_ITEM_EXPANDING(TreeTest_Ctrl, MyTreeCtrl::OnItemExpanding)
 132     EVT_TREE_ITEM_COLLAPSED(TreeTest_Ctrl, MyTreeCtrl::OnItemCollapsed)
 133     EVT_TREE_ITEM_COLLAPSING(TreeTest_Ctrl, MyTreeCtrl::OnItemCollapsing)
 134
 135     EVT_TREE_SEL_CHANGED(TreeTest_Ctrl, MyTreeCtrl::OnSelChanged)
 136     EVT_TREE_SEL_CHANGING(TreeTest_Ctrl, MyTreeCtrl::OnSelChanging)
 137     EVT_TREE_KEY_DOWN(TreeTest_Ctrl, MyTreeCtrl::OnTreeKeyDown)
 138     EVT_TREE_ITEM_ACTIVATED(TreeTest_Ctrl, MyTreeCtrl::OnItemActivated)
 139
 140     // so many differents ways to handle right mouse button clicks...
 141     EVT_CONTEXT_MENU(MyTreeCtrl::OnContextMenu)
 142     // EVT_TREE_ITEM_MENU is the preferred event for creating context menus
 143     // on a tree control, because it includes the point of the click or item,
 144     // meaning that no additional placement calculations are required.
 145     EVT_TREE_ITEM_MENU(TreeTest_Ctrl, MyTreeCtrl::OnItemMenu)
 146     EVT_TREE_ITEM_RIGHT_CLICK(TreeTest_Ctrl, MyTreeCtrl::OnItemRClick)
 147
 148     EVT_RIGHT_DOWN(MyTreeCtrl::OnRMouseDown)
 149     EVT_RIGHT_UP(MyTreeCtrl::OnRMouseUp)
 150     EVT_RIGHT_DCLICK(MyTreeCtrl::OnRMouseDClick)
 151 END_EVENT_TABLE()
 152
 153 IMPLEMENT_APP(MyApp)
 154
 155 bool MyApp::OnInit()
 156 {
 157     if ( !wxApp::OnInit() )
 158         return false;
 159
 160     // Create the main frame window
 161     MyFrame *frame = new MyFrame(wxT("wxTreeCtrl Test"), 50, 50, 450, 600);
 162
 163     // Show the frame
 164     frame->Show(true);
 165     SetTopWindow(frame);
 166
 167     return true;
 168 }
 169
 170
 171 // My frame constructor
 172 MyFrame::MyFrame(const wxString& title, int x, int y, int w, int h)
 173        : wxFrame((wxFrame *)NULL, wxID_ANY, title, wxPoint(x, y), wxSize(w, h)),
 174          m_treeCtrl(NULL)
 175 #if wxUSE_LOG
 176          , m_textCtrl(NULL)
 177 #endif // wxUSE_LOG
 178 {
 179     // This reduces flicker effects - even better would be to define
 180     // OnEraseBackground to do nothing. When the tree control's scrollbars are
 181     // show or hidden, the frame is sent a background erase event.
 182     SetBackgroundColour(wxColour(255, 255, 255));
 183
 184     // Give it an icon
 185     SetIcon(wxICON(sample));
 186
 187 #if wxUSE_MENUS
 188     // Make a menubar
 189     wxMenu *file_menu = new wxMenu,
 190            *style_menu = new wxMenu,
 191            *tree_menu = new wxMenu,
 192            *item_menu = new wxMenu;
 193
 194     file_menu->Append(TreeTest_About, wxT("&About..."));
 195     file_menu->AppendSeparator();
 196     file_menu->Append(TreeTest_Quit, wxT("E&xit\tAlt-X"));
 197
 198     style_menu->AppendCheckItem(TreeTest_TogButtons, wxT("Toggle &normal buttons"));
 199     style_menu->AppendCheckItem(TreeTest_TogTwist, wxT("Toggle &twister buttons"));
 200     style_menu->AppendCheckItem(TreeTest_ToggleButtons, wxT("Toggle image &buttons"));
 201     style_menu->AppendSeparator();
 202     style_menu->AppendCheckItem(TreeTest_TogLines, wxT("Toggle &connecting lines"));
 203     style_menu->AppendCheckItem(TreeTest_TogRootLines, wxT("Toggle &lines at root"));
 204     style_menu->AppendCheckItem(TreeTest_TogHideRoot, wxT("Toggle &hidden root"));
 205     style_menu->AppendCheckItem(TreeTest_TogBorder, wxT("Toggle &item border"));
 206     style_menu->AppendCheckItem(TreeTest_TogFullHighlight, wxT("Toggle &full row highlight"));
 207     style_menu->AppendCheckItem(TreeTest_TogEdit, wxT("Toggle &edit mode"));
 208 #ifndef NO_MULTIPLE_SELECTION
 209     style_menu->AppendCheckItem(TreeTest_ToggleSel, wxT("Toggle &selection mode"));
 210 #endif // NO_MULTIPLE_SELECTION
 211     style_menu->AppendCheckItem(TreeTest_ToggleImages, wxT("Toggle show ima&ges"));
 212     style_menu->Append(TreeTest_SetImageSize, wxT("Set image si&ze..."));
 213     style_menu->AppendSeparator();
 214     style_menu->Append(TreeTest_SetFgColour, wxT("Set &foreground colour..."));
 215     style_menu->Append(TreeTest_SetBgColour, wxT("Set &background colour..."));
 216     style_menu->AppendSeparator();
 217     style_menu->Append(TreeTest_ResetStyle, wxT("&Reset to default\tF10"));
 218
 219     tree_menu->Append(TreeTest_Recreate, wxT("&Recreate the tree"));
 220     tree_menu->Append(TreeTest_CollapseAndReset, wxT("C&ollapse and reset"));
 221     tree_menu->AppendSeparator();
 222     tree_menu->Append(TreeTest_AddItem, wxT("Append a &new item"));
 223     tree_menu->Append(TreeTest_InsertItem, wxT("&Insert a new item"));
 224     tree_menu->Append(TreeTest_Delete, wxT("&Delete this item"));
 225     tree_menu->Append(TreeTest_DeleteChildren, wxT("Delete &children"));
 226     tree_menu->Append(TreeTest_DeleteAll, wxT("Delete &all items"));
 227     tree_menu->Append(TreeTest_SelectRoot, wxT("Select root item"));
 228     tree_menu->AppendSeparator();
 229     tree_menu->Append(TreeTest_Count, wxT("Count children of current item"));
 230     tree_menu->Append(TreeTest_CountRec, wxT("Recursively count children of current item"));
 231     tree_menu->AppendSeparator();
 232     tree_menu->Append(TreeTest_Sort, wxT("Sort children of current item"));
 233     tree_menu->Append(TreeTest_SortRev, wxT("Sort in reversed order"));
 234     tree_menu->AppendSeparator();
 235     tree_menu->Append(TreeTest_EnsureVisible, wxT("Make the last item &visible"));
 236     tree_menu->AppendSeparator();
 237     tree_menu->Append(TreeTest_IncIndent, wxT("Add 5 points to indentation\tAlt-I"));
 238     tree_menu->Append(TreeTest_DecIndent, wxT("Reduce indentation by 5 points\tAlt-R"));
 239     tree_menu->AppendSeparator();
 240     tree_menu->Append(TreeTest_IncSpacing, wxT("Add 5 points to spacing\tCtrl-I"));
 241     tree_menu->Append(TreeTest_DecSpacing, wxT("Reduce spacing by 5 points\tCtrl-R"));
 242
 243     item_menu->Append(TreeTest_Dump, wxT("&Dump item children"));
 244     item_menu->Append(TreeTest_Rename, wxT("&Rename item..."));
 245
 246     item_menu->AppendSeparator();
 247     item_menu->Append(TreeTest_SetBold, wxT("Make item &bold"));
 248     item_menu->Append(TreeTest_ClearBold, wxT("Make item &not bold"));
 249     item_menu->AppendSeparator();
 250     item_menu->Append(TreeTest_ToggleIcon, wxT("Toggle the item's &icon"));
 251
 252 #ifndef NO_MULTIPLE_SELECTION
 253     item_menu->AppendSeparator();
 254     item_menu->Append(TreeTest_DumpSelected, wxT("Dump selected items\tAlt-D"));
 255     item_menu->Append(TreeTest_Select, wxT("Select current item\tAlt-S"));
 256     item_menu->Append(TreeTest_Unselect, wxT("Unselect everything\tAlt-U"));
 257 #endif // NO_MULTIPLE_SELECTION
 258
 259     wxMenuBar *menu_bar = new wxMenuBar;
 260     menu_bar->Append(file_menu, wxT("&File"));
 261     menu_bar->Append(style_menu, wxT("&Style"));
 262     menu_bar->Append(tree_menu, wxT("&Tree"));
 263     menu_bar->Append(item_menu, wxT("&Item"));
 264     SetMenuBar(menu_bar);
 265 #endif // wxUSE_MENUS
 266
 267     m_panel = new wxPanel(this);
 268
 269 #if wxUSE_LOG
 270     // create the controls
 271     m_textCtrl = new wxTextCtrl(m_panel, wxID_ANY, wxT(""),
 272                                 wxDefaultPosition, wxDefaultSize,
 273                                 wxTE_MULTILINE | wxSUNKEN_BORDER);
 274 #endif // wxUSE_LOG
 275
 276     CreateTreeWithDefStyle();
 277
 278     menu_bar->Check(TreeTest_ToggleImages, true);
 279
 280 #if wxUSE_STATUSBAR
 281     // create a status bar
 282     CreateStatusBar(2);
 283 #endif // wxUSE_STATUSBAR
 284
 285 #if wxUSE_LOG
 286 #ifdef __WXMOTIF__
 287     // For some reason, we get a memcpy crash in wxLogStream::DoLogStream
 288     // on gcc/wxMotif, if we use wxLogTextCtl. Maybe it's just gcc?
 289     delete wxLog::SetActiveTarget(new wxLogStderr);
 290 #else
 291     // set our text control as the log target
 292     wxLogTextCtrl *logWindow = new wxLogTextCtrl(m_textCtrl);
 293     delete wxLog::SetActiveTarget(logWindow);
 294 #endif
 295 #endif // wxUSE_LOG
 296 }
 297
 298 MyFrame::~MyFrame()
 299 {
 300 #if wxUSE_LOG
 301     delete wxLog::SetActiveTarget(NULL);
 302 #endif // wxUSE_LOG
 303 }
 304
 305 void MyFrame::CreateTreeWithDefStyle()
 306 {
 307     long style = wxTR_DEFAULT_STYLE |
 308 #ifndef NO_VARIABLE_HEIGHT
 309                  wxTR_HAS_VARIABLE_ROW_HEIGHT |
 310 #endif
 311                  wxTR_EDIT_LABELS;
 312
 313     CreateTree(style | wxSUNKEN_BORDER);
 314
 315     // as we don't know what wxTR_DEFAULT_STYLE could contain, test for
 316     // everything
 317     wxMenuBar *mbar = GetMenuBar();
 318     mbar->Check(TreeTest_TogButtons, (style & wxTR_HAS_BUTTONS) != 0);
 319     mbar->Check(TreeTest_TogButtons, (style & wxTR_TWIST_BUTTONS) != 0);
 320     mbar->Check(TreeTest_TogLines, (style & wxTR_NO_LINES) == 0);
 321     mbar->Check(TreeTest_TogRootLines, (style & wxTR_LINES_AT_ROOT) != 0);
 322     mbar->Check(TreeTest_TogHideRoot, (style & wxTR_HIDE_ROOT) != 0);
 323     mbar->Check(TreeTest_TogEdit, (style & wxTR_EDIT_LABELS) != 0);
 324     mbar->Check(TreeTest_TogBorder, (style & wxTR_ROW_LINES) != 0);
 325     mbar->Check(TreeTest_TogFullHighlight, (style & wxTR_FULL_ROW_HIGHLIGHT) != 0);
 326 }
 327
 328 void MyFrame::CreateTree(long style)
 329 {
 330     m_treeCtrl = new MyTreeCtrl(m_panel, TreeTest_Ctrl,
 331                                 wxDefaultPosition, wxDefaultSize,
 332                                 style);
 333
 334     GetMenuBar()->Enable(TreeTest_SelectRoot, !(style & wxTR_HIDE_ROOT));
 335
 336     Resize();
 337 }
 338
 339 void MyFrame::TogStyle(int id, long flag)
 340 {
 341     long style = m_treeCtrl->GetWindowStyle() ^ flag;
 342
 343     // most treectrl styles can't be changed on the fly using the native
 344     // control and the tree must be recreated
 345 #ifndef __WXMSW__
 346     m_treeCtrl->SetWindowStyle(style);
 347 #else // MSW
 348     delete m_treeCtrl;
 349     CreateTree(style);
 350 #endif // !MSW/MSW
 351
 352     GetMenuBar()->Check(id, (style & flag) != 0);
 353 }
 354
 355 void MyFrame::OnIdle(wxIdleEvent& event)
 356 {
 357 #if wxUSE_STATUSBAR
 358     if ( m_treeCtrl )
 359     {
 360         wxTreeItemId idRoot = m_treeCtrl->GetRootItem();
 361         wxString status;
 362         if (idRoot.IsOk())
 363         {
 364             wxTreeItemId idLast = m_treeCtrl->GetLastChild(idRoot);
 365             status = wxString::Format(
 366                 _T("Root/last item is %svisible/%svisible"),
 367                 m_treeCtrl->IsVisible(idRoot) ? _T("") : _T("not "),
 368                 idLast.IsOk() && m_treeCtrl->IsVisible(idLast)
 369                     ? _T("") : _T("not "));
 370         }
 371         else
 372             status = _T("No root item");
 373
 374         SetStatusText(status, 1);
 375     }
 376 #endif // wxUSE_STATUSBAR
 377
 378     event.Skip();
 379 }
 380
 381 void MyFrame::OnSize(wxSizeEvent& event)
 382 {
 383     if ( m_treeCtrl
 384 #if wxUSE_LOG
 385                     && m_textCtrl
 386 #endif // wxUSE_LOG
 387                                   )
 388     {
 389         Resize();
 390     }
 391
 392     event.Skip();
 393 }
 394
 395 void MyFrame::Resize()
 396 {
 397     wxSize size = GetClientSize();
 398     m_treeCtrl->SetSize(0, 0, size.x, size.y
 399 #if !wxUSE_LOG
 400                                             );
 401 #else
 402                                             *2/3);
 403     m_textCtrl->SetSize(0, 2*size.y/3, size.x, size.y/3);
 404 #endif
 405 }
 406
 407 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 408 {
 409     Close(true);
 410 }
 411
 412 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 413 {
 414     wxMessageBox(wxT("Tree test sample\n")
 415                  wxT("(c) Julian Smart 1997, Vadim Zeitlin 1998"),
 416                  wxT("About tree test"),
 417                  wxOK | wxICON_INFORMATION, this);
 418 }
 419
 420 void MyFrame::OnRename(wxCommandEvent& WXUNUSED(event))
 421 {
 422     wxTreeItemId item = m_treeCtrl->GetSelection();
 423
 424     CHECK_ITEM( item );
 425
 426     // old code - now we edit in place
 427 #if 0
 428     static wxString s_text;
 429     s_text = wxGetTextFromUser(wxT("New name: "), wxT("Tree sample question"),
 430             s_text, this);
 431     if ( !s_text.empty() )
 432     {
 433         m_treeCtrl->SetItemText(item, s_text);
 434     }
 435 #endif // 0
 436
 437     // TODO demonstrate creating a custom edit control...
 438     (void)m_treeCtrl->EditLabel(item);
 439 }
 440
 441 void MyFrame::OnCount(wxCommandEvent& WXUNUSED(event))
 442 {
 443     wxTreeItemId item = m_treeCtrl->GetSelection();
 444
 445     CHECK_ITEM( item );
 446
 447     int i = m_treeCtrl->GetChildrenCount( item, false );
 448
 449     wxLogMessage(wxT("%d children"), i);
 450 }
 451
 452 void MyFrame::OnCountRec(wxCommandEvent& WXUNUSED(event))
 453 {
 454     wxTreeItemId item = m_treeCtrl->GetSelection();
 455
 456     CHECK_ITEM( item );
 457
 458     int i = m_treeCtrl->GetChildrenCount( item );
 459
 460     wxLogMessage(wxT("%d children"), i);
 461 }
 462
 463 void MyFrame::DoSort(bool reverse)
 464 {
 465     wxTreeItemId item = m_treeCtrl->GetSelection();
 466
 467     CHECK_ITEM( item );
 468
 469     m_treeCtrl->DoSortChildren(item, reverse);
 470 }
 471
 472 void MyFrame::OnHighlight(wxCommandEvent& WXUNUSED(event))
 473 {
 474     wxTreeItemId id = m_treeCtrl->GetSelection();
 475
 476     CHECK_ITEM( id );
 477
 478     wxRect r;
 479     if ( !m_treeCtrl->GetBoundingRect(id, r, true /* text, not full row */) )
 480     {
 481         wxLogMessage(_T("Failed to get bounding item rect"));
 482         return;
 483     }
 484
 485     wxClientDC dc(m_treeCtrl);
 486     dc.SetBrush(*wxRED);
 487     dc.SetPen(*wxTRANSPARENT_PEN);
 488     dc.DrawRectangle(r);
 489     m_treeCtrl->Update();
 490 }
 491
 492 void MyFrame::OnDump(wxCommandEvent& WXUNUSED(event))
 493 {
 494     wxTreeItemId root = m_treeCtrl->GetSelection();
 495
 496     CHECK_ITEM( root );
 497
 498     m_treeCtrl->GetItemsRecursively(root);
 499 }
 500
 501 #ifndef NO_MULTIPLE_SELECTION
 502
 503 void MyFrame::OnToggleSel(wxCommandEvent& event)
 504 {
 505     TogStyle(event.GetId(), wxTR_MULTIPLE);
 506 }
 507
 508 void MyFrame::OnDumpSelected(wxCommandEvent& WXUNUSED(event))
 509 {
 510     wxArrayTreeItemIds array;
 511
 512     size_t count = m_treeCtrl->GetSelections(array);
 513     wxLogMessage(wxT("%u items selected"), unsigned(count));
 514
 515     for ( size_t n = 0; n < count; n++ )
 516     {
 517         wxLogMessage(wxT("\t%s"), m_treeCtrl->GetItemText(array.Item(n)).c_str());
 518     }
 519 }
 520
 521 void MyFrame::OnSelect(wxCommandEvent& WXUNUSED(event))
 522 {
 523     m_treeCtrl->SelectItem(m_treeCtrl->GetSelection());
 524 }
 525
 526 void MyFrame::OnSelectRoot(wxCommandEvent& WXUNUSED(event))
 527 {
 528     if ( !m_treeCtrl->HasFlag(wxTR_HIDE_ROOT) )
 529         m_treeCtrl->SelectItem(m_treeCtrl->GetRootItem());
 530 }
 531
 532 void MyFrame::OnUnselect(wxCommandEvent& WXUNUSED(event))
 533 {
 534     m_treeCtrl->UnselectAll();
 535 }
 536
 537 #endif // NO_MULTIPLE_SELECTION
 538
 539 void MyFrame::DoSetBold(bool bold)
 540 {
 541     wxTreeItemId item = m_treeCtrl->GetSelection();
 542
 543     CHECK_ITEM( item );
 544
 545     m_treeCtrl->SetItemBold(item, bold);
 546 }
 547
 548 void MyFrame::OnDelete(wxCommandEvent& WXUNUSED(event))
 549 {
 550     wxTreeItemId item = m_treeCtrl->GetSelection();
 551
 552     CHECK_ITEM( item );
 553
 554     m_treeCtrl->Delete(item);
 555 }
 556
 557 void MyFrame::OnDeleteChildren(wxCommandEvent& WXUNUSED(event))
 558 {
 559     wxTreeItemId item = m_treeCtrl->GetSelection();
 560
 561     CHECK_ITEM( item );
 562
 563     m_treeCtrl->DeleteChildren(item);
 564 }
 565
 566 void MyFrame::OnDeleteAll(wxCommandEvent& WXUNUSED(event))
 567 {
 568     m_treeCtrl->DeleteAllItems();
 569 }
 570
 571 void MyFrame::OnRecreate(wxCommandEvent& event)
 572 {
 573     OnDeleteAll(event);
 574     m_treeCtrl->AddTestItemsToTree(5, 2);
 575 }
 576
 577 void MyFrame::OnSetImageSize(wxCommandEvent& WXUNUSED(event))
 578 {
 579     int size = wxGetNumberFromUser(wxT("Enter the size for the images to use"),
 580                                     wxT("Size: "),
 581                                     wxT("TreeCtrl sample"),
 582                                     m_treeCtrl->ImageSize());
 583     if ( size == -1 )
 584         return;
 585
 586     m_treeCtrl->CreateImageList(size);
 587     wxGetApp().SetShowImages(true);
 588 }
 589
 590 void MyFrame::OnToggleImages(wxCommandEvent& WXUNUSED(event))
 591 {
 592     if ( wxGetApp().ShowImages() )
 593     {
 594         m_treeCtrl->CreateImageList(-1);
 595         wxGetApp().SetShowImages(false);
 596     }
 597     else
 598     {
 599         m_treeCtrl->CreateImageList(0);
 600         wxGetApp().SetShowImages(true);
 601     }
 602 }
 603
 604 void MyFrame::OnToggleButtons(wxCommandEvent& WXUNUSED(event))
 605 {
 606 #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
 607     if ( wxGetApp().ShowButtons() )
 608     {
 609         m_treeCtrl->CreateButtonsImageList(-1);
 610         wxGetApp().SetShowButtons(false);
 611     }
 612     else
 613     {
 614         m_treeCtrl->CreateButtonsImageList(15);
 615         wxGetApp().SetShowButtons(true);
 616     }
 617 #endif
 618 }
 619
 620 void MyFrame::OnCollapseAndReset(wxCommandEvent& WXUNUSED(event))
 621 {
 622     m_treeCtrl->CollapseAndReset(m_treeCtrl->GetRootItem());
 623 }
 624
 625 void MyFrame::OnEnsureVisible(wxCommandEvent& WXUNUSED(event))
 626 {
 627     m_treeCtrl->DoEnsureVisible();
 628 }
 629
 630 void MyFrame::OnInsertItem(wxCommandEvent& WXUNUSED(event))
 631 {
 632     int image = wxGetApp().ShowImages() ? MyTreeCtrl::TreeCtrlIcon_File : -1;
 633     m_treeCtrl->InsertItem(m_treeCtrl->GetRootItem(), image, wxT("2nd item"));
 634 }
 635
 636 void MyFrame::OnAddItem(wxCommandEvent& WXUNUSED(event))
 637 {
 638     static int s_num = 0;
 639
 640     wxString text;
 641     text.Printf(wxT("Item #%d"), ++s_num);
 642
 643     m_treeCtrl->AppendItem(m_treeCtrl->GetRootItem(),
 644                            text /*,
 645                            MyTreeCtrl::TreeCtrlIcon_File */ );
 646 }
 647
 648 void MyFrame::OnIncIndent(wxCommandEvent& WXUNUSED(event))
 649 {
 650     unsigned int indent = m_treeCtrl->GetIndent();
 651     if (indent < 100)
 652         m_treeCtrl->SetIndent( indent+5 );
 653 }
 654
 655 void MyFrame::OnDecIndent(wxCommandEvent& WXUNUSED(event))
 656 {
 657     unsigned int indent = m_treeCtrl->GetIndent();
 658     if (indent > 10)
 659         m_treeCtrl->SetIndent( indent-5 );
 660 }
 661
 662 void MyFrame::OnIncSpacing(wxCommandEvent& WXUNUSED(event))
 663 {
 664     unsigned int indent = m_treeCtrl->GetSpacing();
 665     if (indent < 100)
 666         m_treeCtrl->SetSpacing( indent+5 );
 667 }
 668
 669 void MyFrame::OnDecSpacing(wxCommandEvent& WXUNUSED(event))
 670 {
 671     unsigned int indent = m_treeCtrl->GetSpacing();
 672     if (indent > 10)
 673         m_treeCtrl->SetSpacing( indent-5 );
 674 }
 675
 676 void MyFrame::OnToggleIcon(wxCommandEvent& WXUNUSED(event))
 677 {
 678     wxTreeItemId item = m_treeCtrl->GetSelection();
 679
 680     CHECK_ITEM( item );
 681
 682     m_treeCtrl->DoToggleIcon(item);
 683 }
 684
 685 void MyFrame::OnSetFgColour(wxCommandEvent& WXUNUSED(event))
 686 {
 687     wxColour col = wxGetColourFromUser(this, m_treeCtrl->GetForegroundColour());
 688     if ( col.Ok() )
 689         m_treeCtrl->SetForegroundColour(col);
 690 }
 691
 692 void MyFrame::OnSetBgColour(wxCommandEvent& WXUNUSED(event))
 693 {
 694     wxColour col = wxGetColourFromUser(this, m_treeCtrl->GetBackgroundColour());
 695     if ( col.Ok() )
 696         m_treeCtrl->SetBackgroundColour(col);
 697 }
 698
 699 // MyTreeCtrl implementation
 700 #if USE_GENERIC_TREECTRL
 701 IMPLEMENT_DYNAMIC_CLASS(MyTreeCtrl, wxGenericTreeCtrl)
 702 #else
 703 IMPLEMENT_DYNAMIC_CLASS(MyTreeCtrl, wxTreeCtrl)
 704 #endif
 705
 706 MyTreeCtrl::MyTreeCtrl(wxWindow *parent, const wxWindowID id,
 707                        const wxPoint& pos, const wxSize& size,
 708                        long style)
 709           : wxTreeCtrl(parent, id, pos, size, style)
 710 {
 711     m_reverseSort = false;
 712
 713     CreateImageList();
 714
 715     // Add some items to the tree
 716     AddTestItemsToTree(5, 2);
 717 }
 718
 719 void MyTreeCtrl::CreateImageList(int size)
 720 {
 721     if ( size == -1 )
 722     {
 723         SetImageList(NULL);
 724         return;
 725     }
 726     if ( size == 0 )
 727         size = m_imageSize;
 728     else
 729         m_imageSize = size;
 730
 731     // Make an image list containing small icons
 732     wxImageList *images = new wxImageList(size, size, true);
 733
 734     // should correspond to TreeCtrlIcon_xxx enum
 735     wxBusyCursor wait;
 736     wxIcon icons[5];
 737     icons[0] = wxIcon(icon1_xpm);
 738     icons[1] = wxIcon(icon2_xpm);
 739     icons[2] = wxIcon(icon3_xpm);
 740     icons[3] = wxIcon(icon4_xpm);
 741     icons[4] = wxIcon(icon5_xpm);
 742
 743     int sizeOrig = icons[0].GetWidth();
 744     for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
 745     {
 746         if ( size == sizeOrig )
 747         {
 748             images->Add(icons[i]);
 749         }
 750         else
 751         {
 752             images->Add(wxBitmap(wxBitmap(icons[i]).ConvertToImage().Rescale(size, size)));
 753         }
 754     }
 755
 756     AssignImageList(images);
 757 }
 758
 759 #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
 760 void MyTreeCtrl::CreateButtonsImageList(int size)
 761 {
 762     if ( size == -1 )
 763     {
 764         SetButtonsImageList(NULL);
 765         return;
 766     }
 767
 768     // Make an image list containing small icons
 769     wxImageList *images = new wxImageList(size, size, true);
 770
 771     // should correspond to TreeCtrlIcon_xxx enum
 772     wxBusyCursor wait;
 773     wxIcon icons[4];
 774     icons[0] = wxIcon(icon3_xpm);   // closed
 775     icons[1] = wxIcon(icon3_xpm);   // closed, selected
 776     icons[2] = wxIcon(icon5_xpm);   // open
 777     icons[3] = wxIcon(icon5_xpm);   // open, selected
 778
 779     for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
 780     {
 781         int sizeOrig = icons[i].GetWidth();
 782         if ( size == sizeOrig )
 783         {
 784             images->Add(icons[i]);
 785         }
 786         else
 787         {
 788             images->Add(wxBitmap(wxBitmap(icons[i]).ConvertToImage().Rescale(size, size)));
 789         }
 790     }
 791
 792     AssignButtonsImageList(images);
 793 #else
 794 void MyTreeCtrl::CreateButtonsImageList(int WXUNUSED(size))
 795 {
 796 #endif
 797 }
 798
 799 int MyTreeCtrl::OnCompareItems(const wxTreeItemId& item1,
 800                                const wxTreeItemId& item2)
 801 {
 802     if ( m_reverseSort )
 803     {
 804         // just exchange 1st and 2nd items
 805         return wxTreeCtrl::OnCompareItems(item2, item1);
 806     }
 807     else
 808     {
 809         return wxTreeCtrl::OnCompareItems(item1, item2);
 810     }
 811 }
 812
 813 void MyTreeCtrl::AddItemsRecursively(const wxTreeItemId& idParent,
 814                                      size_t numChildren,
 815                                      size_t depth,
 816                                      size_t folder)
 817 {
 818     if ( depth > 0 )
 819     {
 820         bool hasChildren = depth > 1;
 821
 822         wxString str;
 823         for ( size_t n = 0; n < numChildren; n++ )
 824         {
 825             // at depth 1 elements won't have any more children
 826             if ( hasChildren )
 827                 str.Printf(wxT("%s child %u"), wxT("Folder"), unsigned(n + 1));
 828             else
 829                 str.Printf(wxT("%s child %u.%u"), wxT("File"), unsigned(folder), unsigned(n + 1));
 830
 831             // here we pass to AppendItem() normal and selected item images (we
 832             // suppose that selected image follows the normal one in the enum)
 833             int image, imageSel;
 834             if ( wxGetApp().ShowImages() )
 835             {
 836                 image = depth == 1 ? TreeCtrlIcon_File : TreeCtrlIcon_Folder;
 837                 imageSel = image + 1;
 838             }
 839             else
 840             {
 841                 image = imageSel = -1;
 842             }
 843             wxTreeItemId id = AppendItem(idParent, str, image, imageSel,
 844                                          new MyTreeItemData(str));
 845
 846             // and now we also set the expanded one (only for the folders)
 847             if ( hasChildren && wxGetApp().ShowImages() )
 848             {
 849                 SetItemImage(id, TreeCtrlIcon_FolderOpened,
 850                              wxTreeItemIcon_Expanded);
 851             }
 852
 853             // remember the last child for OnEnsureVisible()
 854             if ( !hasChildren && n == numChildren - 1 )
 855             {
 856                 m_lastItem = id;
 857             }
 858
 859             AddItemsRecursively(id, numChildren, depth - 1, n + 1);
 860         }
 861     }
 862     //else: done!
 863 }
 864
 865 void MyTreeCtrl::AddTestItemsToTree(size_t numChildren,
 866                                     size_t depth)
 867 {
 868     int image = wxGetApp().ShowImages() ? MyTreeCtrl::TreeCtrlIcon_Folder : -1;
 869     wxTreeItemId rootId = AddRoot(wxT("Root"),
 870                                   image, image,
 871                                   new MyTreeItemData(wxT("Root item")));
 872     if ( !HasFlag(wxTR_HIDE_ROOT) && image != -1 )
 873     {
 874         SetItemImage(rootId, TreeCtrlIcon_FolderOpened, wxTreeItemIcon_Expanded);
 875     }
 876
 877     AddItemsRecursively(rootId, numChildren, depth, 0);
 878
 879     // set some colours/fonts for testing
 880     if ( !HasFlag(wxTR_HIDE_ROOT) )
 881         SetItemFont(rootId, *wxITALIC_FONT);
 882
 883     wxTreeItemIdValue cookie;
 884     wxTreeItemId id = GetFirstChild(rootId, cookie);
 885     SetItemTextColour(id, *wxBLUE);
 886
 887     id = GetNextChild(rootId, cookie);
 888     id = GetNextChild(rootId, cookie);
 889     SetItemTextColour(id, *wxRED);
 890     SetItemBackgroundColour(id, *wxLIGHT_GREY);
 891 }
 892
 893 void MyTreeCtrl::GetItemsRecursively(const wxTreeItemId& idParent,
 894                                      wxTreeItemIdValue cookie)
 895 {
 896     wxTreeItemId id;
 897
 898     if ( !cookie )
 899         id = GetFirstChild(idParent, cookie);
 900     else
 901         id = GetNextChild(idParent, cookie);
 902
 903     if ( !id.IsOk() )
 904         return;
 905
 906     wxString text = GetItemText(id);
 907     wxLogMessage(text);
 908
 909     if (ItemHasChildren(id))
 910         GetItemsRecursively(id);
 911
 912     GetItemsRecursively(idParent, cookie);
 913 }
 914
 915 void MyTreeCtrl::DoToggleIcon(const wxTreeItemId& item)
 916 {
 917     int image = (GetItemImage(item) == TreeCtrlIcon_Folder)
 918                     ? TreeCtrlIcon_File
 919                     : TreeCtrlIcon_Folder;
 920     SetItemImage(item, image, wxTreeItemIcon_Normal);
 921
 922     image = (GetItemImage(item) == TreeCtrlIcon_FolderSelected)
 923                     ? TreeCtrlIcon_FileSelected
 924                     : TreeCtrlIcon_FolderSelected;
 925     SetItemImage(item, image, wxTreeItemIcon_Selected);
 926 }
 927
 928 void MyTreeCtrl::LogEvent(const wxChar *name, const wxTreeEvent& event)
 929 {
 930     wxTreeItemId item = event.GetItem();
 931     wxString text;
 932     if ( item.IsOk() )
 933         text << _T('"') << GetItemText(item).c_str() << _T('"');
 934     else
 935         text = _T("invalid item");
 936     wxLogMessage(wxT("%s(%s)"), name, text.c_str());
 937 }
 938
 939 // avoid repetition
 940 #define TREE_EVENT_HANDLER(name)                                 \
 941 void MyTreeCtrl::name(wxTreeEvent& event)                        \
 942 {                                                                \
 943     LogEvent(_T(#name), event);                                  \
 944     SetLastItem(wxTreeItemId());                                 \
 945     event.Skip();                                                \
 946 }
 947
 948 TREE_EVENT_HANDLER(OnBeginRDrag)
 949 TREE_EVENT_HANDLER(OnDeleteItem)
 950 TREE_EVENT_HANDLER(OnGetInfo)
 951 TREE_EVENT_HANDLER(OnSetInfo)
 952 TREE_EVENT_HANDLER(OnItemExpanded)
 953 TREE_EVENT_HANDLER(OnItemExpanding)
 954 TREE_EVENT_HANDLER(OnItemCollapsed)
 955 TREE_EVENT_HANDLER(OnSelChanged)
 956 TREE_EVENT_HANDLER(OnSelChanging)
 957
 958 #undef TREE_EVENT_HANDLER
 959
 960 void LogKeyEvent(const wxChar *name, const wxKeyEvent& event)
 961 {
 962     wxString key;
 963     long keycode = event.GetKeyCode();
 964     {
 965         switch ( keycode )
 966         {
 967             case WXK_BACK: key = wxT("BACK"); break;
 968             case WXK_TAB: key = wxT("TAB"); break;
 969             case WXK_RETURN: key = wxT("RETURN"); break;
 970             case WXK_ESCAPE: key = wxT("ESCAPE"); break;
 971             case WXK_SPACE: key = wxT("SPACE"); break;
 972             case WXK_DELETE: key = wxT("DELETE"); break;
 973             case WXK_START: key = wxT("START"); break;
 974             case WXK_LBUTTON: key = wxT("LBUTTON"); break;
 975             case WXK_RBUTTON: key = wxT("RBUTTON"); break;
 976             case WXK_CANCEL: key = wxT("CANCEL"); break;
 977             case WXK_MBUTTON: key = wxT("MBUTTON"); break;
 978             case WXK_CLEAR: key = wxT("CLEAR"); break;
 979             case WXK_SHIFT: key = wxT("SHIFT"); break;
 980             case WXK_ALT: key = wxT("ALT"); break;
 981             case WXK_CONTROL: key = wxT("CONTROL"); break;
 982             case WXK_MENU: key = wxT("MENU"); break;
 983             case WXK_PAUSE: key = wxT("PAUSE"); break;
 984             case WXK_CAPITAL: key = wxT("CAPITAL"); break;
 985             case WXK_END: key = wxT("END"); break;
 986             case WXK_HOME: key = wxT("HOME"); break;
 987             case WXK_LEFT: key = wxT("LEFT"); break;
 988             case WXK_UP: key = wxT("UP"); break;
 989             case WXK_RIGHT: key = wxT("RIGHT"); break;
 990             case WXK_DOWN: key = wxT("DOWN"); break;
 991             case WXK_SELECT: key = wxT("SELECT"); break;
 992             case WXK_PRINT: key = wxT("PRINT"); break;
 993             case WXK_EXECUTE: key = wxT("EXECUTE"); break;
 994             case WXK_SNAPSHOT: key = wxT("SNAPSHOT"); break;
 995             case WXK_INSERT: key = wxT("INSERT"); break;
 996             case WXK_HELP: key = wxT("HELP"); break;
 997             case WXK_NUMPAD0: key = wxT("NUMPAD0"); break;
 998             case WXK_NUMPAD1: key = wxT("NUMPAD1"); break;
 999             case WXK_NUMPAD2: key = wxT("NUMPAD2"); break;
1000             case WXK_NUMPAD3: key = wxT("NUMPAD3"); break;
1001             case WXK_NUMPAD4: key = wxT("NUMPAD4"); break;
1002             case WXK_NUMPAD5: key = wxT("NUMPAD5"); break;
1003             case WXK_NUMPAD6: key = wxT("NUMPAD6"); break;
1004             case WXK_NUMPAD7: key = wxT("NUMPAD7"); break;
1005             case WXK_NUMPAD8: key = wxT("NUMPAD8"); break;
1006             case WXK_NUMPAD9: key = wxT("NUMPAD9"); break;
1007             case WXK_MULTIPLY: key = wxT("MULTIPLY"); break;
1008             case WXK_ADD: key = wxT("ADD"); break;
1009             case WXK_SEPARATOR: key = wxT("SEPARATOR"); break;
1010             case WXK_SUBTRACT: key = wxT("SUBTRACT"); break;
1011             case WXK_DECIMAL: key = wxT("DECIMAL"); break;
1012             case WXK_DIVIDE: key = wxT("DIVIDE"); break;
1013             case WXK_F1: key = wxT("F1"); break;
1014             case WXK_F2: key = wxT("F2"); break;
1015             case WXK_F3: key = wxT("F3"); break;
1016             case WXK_F4: key = wxT("F4"); break;
1017             case WXK_F5: key = wxT("F5"); break;
1018             case WXK_F6: key = wxT("F6"); break;
1019             case WXK_F7: key = wxT("F7"); break;
1020             case WXK_F8: key = wxT("F8"); break;
1021             case WXK_F9: key = wxT("F9"); break;
1022             case WXK_F10: key = wxT("F10"); break;
1023             case WXK_F11: key = wxT("F11"); break;
1024             case WXK_F12: key = wxT("F12"); break;
1025             case WXK_F13: key = wxT("F13"); break;
1026             case WXK_F14: key = wxT("F14"); break;
1027             case WXK_F15: key = wxT("F15"); break;
1028             case WXK_F16: key = wxT("F16"); break;
1029             case WXK_F17: key = wxT("F17"); break;
1030             case WXK_F18: key = wxT("F18"); break;
1031             case WXK_F19: key = wxT("F19"); break;
1032             case WXK_F20: key = wxT("F20"); break;
1033             case WXK_F21: key = wxT("F21"); break;
1034             case WXK_F22: key = wxT("F22"); break;
1035             case WXK_F23: key = wxT("F23"); break;
1036             case WXK_F24: key = wxT("F24"); break;
1037             case WXK_NUMLOCK: key = wxT("NUMLOCK"); break;
1038             case WXK_SCROLL: key = wxT("SCROLL"); break;
1039             case WXK_PAGEUP: key = wxT("PAGEUP"); break;
1040             case WXK_PAGEDOWN: key = wxT("PAGEDOWN"); break;
1041             case WXK_NUMPAD_SPACE: key = wxT("NUMPAD_SPACE"); break;
1042             case WXK_NUMPAD_TAB: key = wxT("NUMPAD_TAB"); break;
1043             case WXK_NUMPAD_ENTER: key = wxT("NUMPAD_ENTER"); break;
1044             case WXK_NUMPAD_F1: key = wxT("NUMPAD_F1"); break;
1045             case WXK_NUMPAD_F2: key = wxT("NUMPAD_F2"); break;
1046             case WXK_NUMPAD_F3: key = wxT("NUMPAD_F3"); break;
1047             case WXK_NUMPAD_F4: key = wxT("NUMPAD_F4"); break;
1048             case WXK_NUMPAD_HOME: key = wxT("NUMPAD_HOME"); break;
1049             case WXK_NUMPAD_LEFT: key = wxT("NUMPAD_LEFT"); break;
1050             case WXK_NUMPAD_UP: key = wxT("NUMPAD_UP"); break;
1051             case WXK_NUMPAD_RIGHT: key = wxT("NUMPAD_RIGHT"); break;
1052             case WXK_NUMPAD_DOWN: key = wxT("NUMPAD_DOWN"); break;
1053             case WXK_NUMPAD_PAGEUP: key = wxT("NUMPAD_PAGEUP"); break;
1054             case WXK_NUMPAD_PAGEDOWN: key = wxT("NUMPAD_PAGEDOWN"); break;
1055             case WXK_NUMPAD_END: key = wxT("NUMPAD_END"); break;
1056             case WXK_NUMPAD_BEGIN: key = wxT("NUMPAD_BEGIN"); break;
1057             case WXK_NUMPAD_INSERT: key = wxT("NUMPAD_INSERT"); break;
1058             case WXK_NUMPAD_DELETE: key = wxT("NUMPAD_DELETE"); break;
1059             case WXK_NUMPAD_EQUAL: key = wxT("NUMPAD_EQUAL"); break;
1060             case WXK_NUMPAD_MULTIPLY: key = wxT("NUMPAD_MULTIPLY"); break;
1061             case WXK_NUMPAD_ADD: key = wxT("NUMPAD_ADD"); break;
1062             case WXK_NUMPAD_SEPARATOR: key = wxT("NUMPAD_SEPARATOR"); break;
1063             case WXK_NUMPAD_SUBTRACT: key = wxT("NUMPAD_SUBTRACT"); break;
1064             case WXK_NUMPAD_DECIMAL: key = wxT("NUMPAD_DECIMAL"); break;
1065
1066             default:
1067             {
1068                if ( keycode < 128 && wxIsprint((int)keycode) )
1069                    key.Printf(wxT("'%c'"), (char)keycode);
1070                else if ( keycode > 0 && keycode < 27 )
1071                    key.Printf(_("Ctrl-%c"), wxT('A') + keycode - 1);
1072                else
1073                    key.Printf(wxT("unknown (%ld)"), keycode);
1074             }
1075         }
1076     }
1077
1078     wxLogMessage( wxT("%s event: %s (flags = %c%c%c%c)"),
1079                   name,
1080                   key.c_str(),
1081                   event.ControlDown() ? wxT('C') : wxT('-'),
1082                   event.AltDown() ? wxT('A') : wxT('-'),
1083                   event.ShiftDown() ? wxT('S') : wxT('-'),
1084                   event.MetaDown() ? wxT('M') : wxT('-'));
1085 }
1086
1087 void MyTreeCtrl::OnTreeKeyDown(wxTreeEvent& event)
1088 {
1089     LogKeyEvent(wxT("Tree key down "), event.GetKeyEvent());
1090
1091     event.Skip();
1092 }
1093
1094 void MyTreeCtrl::OnBeginDrag(wxTreeEvent& event)
1095 {
1096     // need to explicitly allow drag
1097     if ( event.GetItem() != GetRootItem() )
1098     {
1099         m_draggedItem = event.GetItem();
1100
1101         wxPoint clientpt = event.GetPoint();
1102         wxPoint screenpt = ClientToScreen(clientpt);
1103
1104         wxLogMessage(wxT("OnBeginDrag: started dragging %s at screen coords (%i,%i)"),
1105                      GetItemText(m_draggedItem).c_str(),
1106                      screenpt.x, screenpt.y);
1107
1108         event.Allow();
1109     }
1110     else
1111     {
1112         wxLogMessage(wxT("OnBeginDrag: this item can't be dragged."));
1113     }
1114 }
1115
1116 void MyTreeCtrl::OnEndDrag(wxTreeEvent& event)
1117 {
1118     wxTreeItemId itemSrc = m_draggedItem,
1119                  itemDst = event.GetItem();
1120     m_draggedItem = (wxTreeItemId)0l;
1121
1122     // where to copy the item?
1123     if ( itemDst.IsOk() && !ItemHasChildren(itemDst) )
1124     {
1125         // copy to the parent then
1126         itemDst = GetItemParent(itemDst);
1127     }
1128
1129     if ( !itemDst.IsOk() )
1130     {
1131         wxLogMessage(wxT("OnEndDrag: can't drop here."));
1132
1133         return;
1134     }
1135
1136     wxString text = GetItemText(itemSrc);
1137     wxLogMessage(wxT("OnEndDrag: '%s' copied to '%s'."),
1138                  text.c_str(), GetItemText(itemDst).c_str());
1139
1140     // just do append here - we could also insert it just before/after the item
1141     // on which it was dropped, but this requires slightly more work... we also
1142     // completely ignore the client data and icon of the old item but could
1143     // copy them as well.
1144     //
1145     // Finally, we only copy one item here but we might copy the entire tree if
1146     // we were dragging a folder.
1147     int image = wxGetApp().ShowImages() ? TreeCtrlIcon_File : -1;
1148     AppendItem(itemDst, text, image);
1149 }
1150
1151 void MyTreeCtrl::OnBeginLabelEdit(wxTreeEvent& event)
1152 {
1153     wxLogMessage(wxT("OnBeginLabelEdit"));
1154
1155     // for testing, prevent this item's label editing
1156     wxTreeItemId itemId = event.GetItem();
1157     if ( IsTestItem(itemId) )
1158     {
1159         wxMessageBox(wxT("You can't edit this item."));
1160
1161         event.Veto();
1162     }
1163     else if ( itemId == GetRootItem() )
1164     {
1165         // test that it is possible to change the text of the item being edited
1166         SetItemText(itemId, _T("Editing root item"));
1167     }
1168 }
1169
1170 void MyTreeCtrl::OnEndLabelEdit(wxTreeEvent& event)
1171 {
1172     wxLogMessage(wxT("OnEndLabelEdit"));
1173
1174     // don't allow anything except letters in the labels
1175     if ( !event.GetLabel().IsWord() )
1176     {
1177         wxMessageBox(wxT("The new label should be a single word."));
1178
1179         event.Veto();
1180     }
1181 }
1182
1183 void MyTreeCtrl::OnItemCollapsing(wxTreeEvent& event)
1184 {
1185     wxLogMessage(wxT("OnItemCollapsing"));
1186
1187     // for testing, prevent the user from collapsing the first child folder
1188     wxTreeItemId itemId = event.GetItem();
1189     if ( IsTestItem(itemId) )
1190     {
1191         wxMessageBox(wxT("You can't collapse this item."));
1192
1193         event.Veto();
1194     }
1195 }
1196
1197 void MyTreeCtrl::OnItemActivated(wxTreeEvent& event)
1198 {
1199     // show some info about this item
1200     wxTreeItemId itemId = event.GetItem();
1201     MyTreeItemData *item = (MyTreeItemData *)GetItemData(itemId);
1202
1203     if ( item != NULL )
1204     {
1205         item->ShowInfo(this);
1206     }
1207
1208     wxLogMessage(wxT("OnItemActivated"));
1209 }
1210
1211 void MyTreeCtrl::OnItemMenu(wxTreeEvent& event)
1212 {
1213     wxTreeItemId itemId = event.GetItem();
1214     MyTreeItemData *item = itemId.IsOk() ? (MyTreeItemData *)GetItemData(itemId)
1215                                          : NULL;
1216     wxPoint clientpt = event.GetPoint();
1217     wxPoint screenpt = ClientToScreen(clientpt);
1218
1219     wxLogMessage(wxT("OnItemMenu for item \"%s\" at screen coords (%i, %i)"),
1220                  item ? item->GetDesc() : _T(""), screenpt.x, screenpt.y);
1221
1222     ShowMenu(itemId, clientpt);
1223     event.Skip();
1224 }
1225
1226 void MyTreeCtrl::OnContextMenu(wxContextMenuEvent& event)
1227 {
1228     wxPoint pt = event.GetPosition();
1229
1230     wxLogMessage(wxT("OnContextMenu at screen coords (%i, %i)"), pt.x, pt.y);
1231 }
1232
1233 void MyTreeCtrl::ShowMenu(wxTreeItemId id, const wxPoint& pt)
1234 {
1235     wxString title;
1236     if ( id.IsOk() )
1237     {
1238         title << wxT("Menu for ") << GetItemText(id);
1239     }
1240     else
1241     {
1242         title = wxT("Menu for no particular item");
1243     }
1244
1245 #if wxUSE_MENUS
1246     wxMenu menu(title);
1247     menu.Append(TreeTest_About, wxT("&About..."));
1248     menu.AppendSeparator();
1249     menu.Append(TreeTest_Highlight, wxT("&Highlight item"));
1250     menu.Append(TreeTest_Dump, wxT("&Dump"));
1251
1252     PopupMenu(&menu, pt);
1253 #endif // wxUSE_MENUS
1254 }
1255
1256 void MyTreeCtrl::OnItemRClick(wxTreeEvent& event)
1257 {
1258     wxTreeItemId itemId = event.GetItem();
1259     MyTreeItemData *item = itemId.IsOk() ? (MyTreeItemData *)GetItemData(itemId)
1260                                          : NULL;
1261
1262     wxLogMessage(wxT("Item \"%s\" right clicked"), item ? item->GetDesc()
1263                                                         : _T(""));
1264
1265     event.Skip();
1266 }
1267
1268 void MyTreeCtrl::OnRMouseDown(wxMouseEvent& event)
1269 {
1270     wxLogMessage(wxT("Right mouse button down"));
1271
1272     event.Skip();
1273 }
1274
1275 void MyTreeCtrl::OnRMouseUp(wxMouseEvent& event)
1276 {
1277     wxLogMessage(wxT("Right mouse button up"));
1278
1279     event.Skip();
1280 }
1281
1282 void MyTreeCtrl::OnRMouseDClick(wxMouseEvent& event)
1283 {
1284     wxTreeItemId id = HitTest(event.GetPosition());
1285     if ( !id )
1286         wxLogMessage(wxT("No item under mouse"));
1287     else
1288     {
1289         MyTreeItemData *item = (MyTreeItemData *)GetItemData(id);
1290         if ( item )
1291             wxLogMessage(wxT("Item '%s' under mouse"), item->GetDesc());
1292     }
1293
1294     event.Skip();
1295 }
1296
1297 static inline const wxChar *Bool2String(bool b)
1298 {
1299     return b ? wxT("") : wxT("not ");
1300 }
1301
1302 void MyTreeItemData::ShowInfo(wxTreeCtrl *tree)
1303 {
1304     wxLogMessage(wxT("Item '%s': %sselected, %sexpanded, %sbold,\n")
1305                  wxT("%u children (%u immediately under this item)."),
1306                  m_desc.c_str(),
1307                  Bool2String(tree->IsSelected(GetId())),
1308                  Bool2String(tree->IsExpanded(GetId())),
1309                  Bool2String(tree->IsBold(GetId())),
1310                  unsigned(tree->GetChildrenCount(GetId())),
1311                  unsigned(tree->GetChildrenCount(GetId(), false)));
1312 }